f(x)=-8x^4-5x^3 +3 for concavity and inflection points.
f(x)=-8x^4-5x^3 +3
f'(x)=-32x^3-15x^2
f''(x)=-96x^2-30x
can someone explain to me what exactly Inflection Points are?
is it like critical points for the first derivative but those are for the second one?
i mean, making f''(x) = 0 and get 2 numbers and those are the Inflection Points?